Bumping gaia.json for 2 gaia revision(s) a=gaia-bump

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https://hg.mozilla.org/integration/gaia-central/rev/06f0b6d89ec4
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Merge pull request #15528 from EverythingMe/bug-948195

Bug 948195 - Marketplace is incorrectly listed in the Games bubble in th...

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https://hg.mozilla.org/integration/gaia-central/rev/a524dc778ff2
Author: Amir Nissim <amirnissim@gmail.com>
Desc: Bug 948195 - Marketplace is incorrectly listed in the Games bubble in the Search screen [r=ranbena]
Bumping manifests a=b2g-bump